feat(mcp): add 8 new validated MCP servers

Add actual-mcp, beszel-mcp, gitea-mcp, ha-mcp, limesurvey-mcp,
linkwarden-mcp, mcp-grafana, and superset-mcp with full validation.

Key fixes applied:
- linkwarden-mcp: Added 'stdio' subcommand to ENTRYPOINT
- mcp-grafana: Fixed build path (./cmd/mcp-grafana) and added '--transport stdio' flag

All 8 servers validated with MCP protocol handshake.
Working MCP server count: 24 (up from 16)

💘 Generated with Crush

Assisted-by: GLM-5 via Crush <crush@charm.land>

dockerfiles/gitea-mcp/Dockerfile

@@ -0,0 +1,18 @@
+FROM golang:1.24-alpine AS builder
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=0 go build -o gitea-mcp .
+
+FROM alpine:3.20
+
+RUN apk --no-cache add ca-certificates
+
+COPY --from=builder /app/gitea-mcp /usr/local/bin/gitea-mcp
+
+ENTRYPOINT ["/usr/local/bin/gitea-mcp"]